I'm not coming back to your store ever

I went to Ackerman's at Motherwell shopping centre to pay my laybye ,they told me the system is offline the is nothing they can do.i arrived at home and phone the call centre for assistance to help me extend my laybye due date .instead I getting transferred from department to another department until they decided to drop the call .my due date it's on the 4th October I'll be back in town by the 7 the .Wich means by the time I'm back it due already .poor service in this store waste of my busfare ,time and my airtime