Bad service!!

Worst customer service ever! My account showed un arrears after I made an upfront payment which apparently is for the next full month of service,because my account was activated after a full month,so I paid the amount that was in arrears almost a week ago and sent them proof of payment as they requested yet my account still shows in arrears.I made an immediate payment which should reflect by them by now.My router is also not working,has no internet connection for about two weeks now,I still have data available,I am paying now for a service that I can't use..trying to get in contact with them via all platforms but alas..I wish I had reviewed them before because this is really bad service