Mobile financial services (MFS) provider Trust Axiata Pay (Tap) has launched inter-banking transaction services in collaboration with Sonali Bank. From now on Tap users can avail of the services using Sonali Bank's add money option. Read: Tap offers bonus data, cashback on Robi, Airtel internet packages Customers can avail of the services for free by adding the Sonali Bank option to their apps. To enjoy the service, add money or fund transfer option needs to be accessed. "Tap customers can add money or transfer funds of maximum Tk50,000 and Tk3 lakh monthly," the MFS CEO Nazmul Hasan said in a media statement.