diff --git a/src/cli/config/bundler.ts b/src/cli/config/bundler.ts
index 87780231..7e8ace8e 100644
--- a/src/cli/config/bundler.ts
+++ b/src/cli/config/bundler.ts
@@ -30,6 +30,7 @@ export const bundlerArgsSchema = z.object({
         (v) => (v === "" ? undefined : v),
         addressSchema.optional()
     ),
+    "refill-helper-contract": addressSchema.optional(),
     "no-profit-bundling": z.boolean(),
     "safe-mode": z.boolean(),
     "utility-private-key": hexData32Schema
diff --git a/src/cli/config/options.ts b/src/cli/config/options.ts
index 833b9950..3f96492b 100644
--- a/src/cli/config/options.ts
+++ b/src/cli/config/options.ts
@@ -26,6 +26,11 @@ export const bundlerOptions: CliCommandOptions<IBundlerArgsInput> = {
         require: false,
         default: "0xBbe8A301FbDb2a4CD58c4A37c262ecef8f889c47"
     },
+    "refill-helper-contract": {
+        description: "Address of the Executor refill helper contract",
+        type: "string",
+        require: false
+    },
     "executor-private-keys": {
         description: "Private keys of the executor accounts split by commas",
         type: "string",
diff --git a/src/cli/handler.ts b/src/cli/handler.ts
index 1f4d195d..0f4749d3 100644
--- a/src/cli/handler.ts
+++ b/src/cli/handler.ts
@@ -22,17 +22,17 @@ import { deploySimulationsContract } from "./deploySimulationsContract"
 
 const preFlightChecks = async (config: AltoConfig): Promise<void> => {
     for (const entrypoint of config.entrypoints) {
-        const entryPointCode = await config.publicClient.getBytecode({
+        const entryPointCode = await config.publicClient.getCode({
             address: entrypoint
         })
-        if (entryPointCode === "0x") {
+        if (entryPointCode === undefined || entryPointCode === "0x") {
             throw new Error(`entry point ${entrypoint} does not exist`)
         }
     }
 
     if (config.entrypointSimulationContract) {
         const simulations = config.entrypointSimulationContract
-        const simulationsCode = await config.publicClient.getBytecode({
+        const simulationsCode = await config.publicClient.getCode({
             address: simulations
         })
         if (simulationsCode === undefined || simulationsCode === "0x") {
@@ -41,6 +41,18 @@ const preFlightChecks = async (config: AltoConfig): Promise<void> => {
             )
         }
     }
+
+    if (config.refillHelperContract) {
+        const refillHelper = config.refillHelperContract
+        const refillHelperCode = await config.publicClient.getCode({
+            address: refillHelper
+        })
+        if (refillHelperCode === undefined || refillHelperCode === "0x") {
+            throw new Error(
+                `RefillHelper contract ${refillHelper} does not exist`
+            )
+        }
+    }
 }
 
 export async function bundlerHandler(args_: IOptionsInput): Promise<void> {
diff --git a/src/executor/senderManager.ts b/src/executor/senderManager.ts
index 4bd7a2a8..b804919e 100644
--- a/src/executor/senderManager.ts
+++ b/src/executor/senderManager.ts
@@ -140,11 +140,7 @@ export class SenderManager {
             const { maxFeePerGas, maxPriorityFeePerGas } =
                 await this.gasPriceManager.getGasPrice()
 
-            if (
-                this.config.walletClient.chain.id === 59140 ||
-                this.config.walletClient.chain.id === 137 ||
-                this.config.walletClient.chain.id === 10
-            ) {
+            if (this.config.refillHelperContract) {
                 const instructions = []
                 for (const [address, missingBalance] of Object.entries(
                     balancesMissing
@@ -156,18 +152,9 @@ export class SenderManager {
                     })
                 }
 
-                let refillAddress: `0x${string}`
-                if (this.config.walletClient.chain.id === 59140) {
-                    refillAddress = "0xEad1aC3DF6F96b91491d6396F4d1610C5638B4Db"
-                } else if (this.config.walletClient.chain.id === 137) {
-                    refillAddress = "0x3402DB43152dAB9ab72fa805fdD5f391cD3E3822"
-                } else {
-                    refillAddress = "0x3402DB43152dAB9ab72fa805fdD5f391cD3E3822"
-                }
-
                 const callEngine = getContract({
                     abi: CallEngineAbi,
-                    address: refillAddress,
+                    address: this.config.refillHelperContract,
                     client: {
                         public: this.config.publicClient,
                         wallet: this.config.walletClient