Poor service

I paid toomuch wifi on 01/08/26 on 03/08/26 I was disconnected. I called them and email them and they are giving a run around , I asked for a refund ,they said they will send a technician ,that was on Sunday . Up until today no technician . My reference number or Customer number is KL***9 . They've been sending me from pillar to post wanting proof of payment , number linked to the acc and a picture of the device , I've sent those numerous times,but from the 03/08/26 until now I have no internet.