Roll on 3+ years with daughter visiting her gran for a few days. First night received over use warning , then I went up a few weeks later and spent 1-2 days working from parents home. Received 2nd warning and line auto upgraded to £10 / mth. oh well .
So the morel is you get what you pay for. As I a working from parents house for a few weeks, I will continue to pay the £10/mth. Once back to normal will see if SKY will revert back.