fridge not sorted out and price went up with no no

Hi I'm a pensioner and I have a contract with<br> Master Care. My contract number is S030621<br> They increase my monthly installment with no <br> Notice, when I called to query I was told that they<br> Will call me back but till today I have not received a call. <br> My fridge number is x*** which is not repaired <br> Till now. I did give your'\ll this complain about the <br> Fridge before. <br> <br> Please assist me. <br> Thanks ***"