Paypal Seller protection

[B4 Sloth]

Every now and again I have been caught out on ebay.

On 6th February I sold a 4 month old sony ericcson Vivaz, in full working order. A couple of days ago the buyer emailed me after a full refund as the phone was 'not as described'. He stated that the phone was broken. He stated that he had shelled out on a new battery and charger, £20 to have it checked out only to be told that it was the phone at fault.

Absolute Poppycock but paypal have frozen almost £90 quid.

He has not responded to my emails when I asked questions in relation to 'which shop taken to', when did you start having problems...and why wait six weeks to contact me.
Any contact I have had is by particularly poor text speak, he has also called me 'babe' and signed off with a 'x'. If it wasnt for the fact that paypal do not cover items supposedly significantly not as described and I have had to transfer £90 from my bank account to cover it I would tell him to whistle for his refund.

Any advice based on experiences??? Thanks