From ce0895eb72cb6e0ab71db764b748d2105127a333 Mon Sep 17 00:00:00 2001
From: TaprootFreak <142087526+TaprootFreak@users.noreply.github.com>
Date: Wed, 18 Feb 2026 13:07:17 +0100
Subject: [PATCH] fix: skip DFX trading limit for RealUnit transactions (#3213)

* fix: skip DFX trading limit for RealUnit transactions

Aktionariat manages its own limits for REALU, so the general DFX
1000 CHF/month cap should not apply. This prevents 400 errors when
users with KYC 30 try to buy/sell REALU for more than 1000 CHF.

* refactor: move REALU limit bypass into getLimits method

Per review feedback, integrate the RealUnit check directly into
getLimits() as a non-static method instead of overriding externally.
---
 .../payment/services/transaction-helper.ts         | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/subdomains/supporting/payment/services/transaction-helper.ts b/src/subdomains/supporting/payment/services/transaction-helper.ts
index b673e656cf..cba83c2242 100644
--- a/src/subdomains/supporting/payment/services/transaction-helper.ts
+++ b/src/subdomains/supporting/payment/services/transaction-helper.ts
@@ -291,7 +291,7 @@ export class TransactionHelper implements OnModuleInit {
     // get specs (CHF)
     const specs = this.getMinSpecs(from, to);
 
-    const { kycLimit, defaultLimit } = await this.getLimits(paymentMethodIn, paymentMethodOut, user);
+    const { kycLimit, defaultLimit } = await this.getLimits(from, to, paymentMethodIn, paymentMethodOut, user);
 
     const error = this.getTxError(
       from,
@@ -915,10 +915,16 @@ export class TransactionHelper implements OnModuleInit {
   }
 
   private async getLimits(
+    from: Active,
+    to: Active,
     paymentMethodIn: PaymentMethod,
     paymentMethodOut: PaymentMethod,
     user?: User,
   ): Promise<{ kycLimit: number; defaultLimit: number }> {
+    if (this.isRealUnitTransaction(from, to)) {
+      return { kycLimit: Number.MAX_VALUE, defaultLimit: Number.MAX_VALUE };
+    }
+
     const volume30d =
       user?.userData.kycLevel < KycLevel.LEVEL_50
         ? await this.user30dVolumeCache.get(user.id.toString(), () =>
@@ -950,6 +956,7 @@ export class TransactionHelper implements OnModuleInit {
     const isBuy = isFiat(from) && isAsset(to);
     const isSell = isAsset(from) && isFiat(to);
     const isSwap = isAsset(from) && isAsset(to);
+    const isRealUnit = this.isRealUnitTransaction(from, to);
 
     if (
       user?.wallet.amlRuleList.includes(AmlRule.SKIP_AML_CHECK) &&
@@ -1012,6 +1019,7 @@ export class TransactionHelper implements OnModuleInit {
     // verification checks
     if (
       ((isSell && to.name !== 'CHF') || isSwap) &&
+      !isRealUnit &&
       user &&
       !user.userData.hasBankTxVerification &&
       txAmountChf > Config.tradingLimits.monthlyDefaultWoKyc
@@ -1033,4 +1041,8 @@ export class TransactionHelper implements OnModuleInit {
 
     return currency;
   }
+
+  private isRealUnitTransaction(from: Active, to: Active): boolean {
+    return (isAsset(from) && from.name === 'REALU') || (isAsset(to) && to.name === 'REALU');
+  }
 }