Incorrect information given just to make a sale

I enquired With fnb connect re a device

When’s my call Was returned I specifically asked Agent if I’ll be able To make additional payments to My device and she said yes

I went Ahead and got the device, now when wanting to Make payment I’m told I can’t.

I called fnb connect who put me Through to sales and when I called sales I’m told I have to go into a branch to get the recording

I took out the device based on the information I received

As per that call I want to be able to makes additional payments

Otherwise I could have gone without a cheaper service provider