Samsung S2 Charging Problem - Any Bright Ideas

[mccfluff]

Im one week off upgrading, one bloody week and i can't charge my phone properly

Its plugged in and shows that its charging but the battery level is going down rather than up, every now and then i get a small increase but that's it

i have
switched batteries
tried different chargers, genuine and non gen
re-started phone

and i've run out of ideas now, virgin have said i need to send it away to be repaired but i don;t want to do this when i only have one week and i can get the bloody thing replaced, have anyone got any other things for me to try (swearing doesn't work)

[mccfluff]

i haven't fender, what could i use instead of the alcohol, i have nail varnish remover?

i don't have an external battery charger unfortunately, i'll get one when i get my new phone. it does seem to be charging now, just very slowly. if i can keep going for a week, thats all i need!