Need help resolving a billing issue

I have spent hours with Customer Service, Loyality department, contract department trying to resolve a billing issue.

I added a wireless home phone for my mother to my wireless account.

I was advised the charge for this would be an additional $20 per month.

When I got my bill it went from $90 to $177 dollars.

I called customer service, they connected me to the loyality department.

The rep said he could only give me $30 credit but would add another 3 gigs of data to

my monthly account. When he did this my main wireless number was cancelled accidentally.

It took 6 hours of my time, 3 online and 3 at an ATT store for them to determine that

they could not get me back my number, they submitted a work order to see if it was possible

to return the number to me.

I asked them to temporarily give me my mother's cell phone number, that did not work,

didn't have access to data. Then asked if they could give me a temp number, I had that for 2 days and got a message that I could get my old number back.

Went back to phone store, get the number back but they couldn't drop the temporary number.

Had to call another cust svc rep to do that.

When I got my latest bill it was $300.00

The issue is they charged me $150.00 to get my phone number back, the number that was dropped by an ATT employee. I have talked to at least 6 reps, contract, customer service and loyality. They said they cannot make the adjustment - it has to be referred to higher management.

The last loyality rep submitted a case number: cm20170320_123243814

I was supposed to hear back by 3/29 - have not heard anything

cancelled in error - loyality - bernita
should see adjustment on bill

Please look into this matter - I should not be charged $150 to get a phone number back that I should never have lost.