I have been trying to cancel my sky contract, they really are slippery, giving me
the run around, anybody had the same problem?
You're not the only one. Sky are scumbags. Telegraph
If it were me, I'd write to them cancelling the contract. State the date you are cancelling from (i.e. the last date of your 12 months plus one day). State you are within the 31 days notification period. Send the letter signed for. Say in the letter you will be sending it signed for, get a stamped certificate of posting as well, then cancel your direct debit. You might owe them one further payment for the last month, ask them for a final bill and pay that by cheque. Refuse to pay any "early cancellation penalties" if you are totally sure you have cancelled after 12 months.
They then can't say they did not receive your letter, as you have proof it was received and signed for. You can obtain this proof by entering the barcode number on the RM website.
They will threaten you with all sorts and put the debt collectors on you, but you're legally watertight. Just reply to any letters with a copy of your original letter and enclose copies of the RM webpage showing the letter was received and signed for , and the certificate of posting. Send copies, do NOT send the originals or they will "lose" them.
You'll need to be quite determined. Just reply to any contact from them by referring to your original cancellation latter and don't enter into a dialogue. Their retention team will try very hard to tempt you back with all sorts of deals, whether you accept is up to you. Personally I wouldn't p*ss on Rupert Murdoch if he was on fire, but that's me.