Client services bad... no one called back

My husband switch to fnb in March 2022, they offered him uncapped calls, data, sms etc. For the 440r p/m. He wanted to keep his jumper and just port... so this never happened and fnb started with the debit order. He went to fnb and informed them as to what is happening that his number didn't port and deductions went off without him using the fnb connect sim? They gave him a reference number stating and assuring that someone will call him as he now wants his money refunded seeing that he never used the airtime or data on that sim??? ***... to Date no one from fnb has made contact or followed up!!! Phillip contact number is ***... give his 3 months payment back to the value of R440 per month!!!!