Didnt get my rewards

When ever i share my promo code with my friends as per beam when other person use the credit which he get from ur promo code make transactions also but I never get my 40 dihrams rewards back even they use it
Send so many emails to be team but they never replied back really bad customer
services

Before the beam good when u share ur promo code and when ur friends use it make transactions u will get reward very Quickly but now never ever u will get anything

Thanks

Regds

MAHAYASI about Beam, v3.2.5