Hi - I have an account with the Caja Murcia Bank in Puerto de Mazarron (circa 20-30 minutes from Corvera). The staff are friendly and a number of them are multi-lingual. They provide usual banking facilities and don't charge to recieve Euro transfers from the UK. My contact is with Lola (email mdvivancos@cajamurcia.com) and she speaks good English.
If its of any help, I send regular transfers via Moneycorp - normal transfer rates are £15 per transaction but they undertake a regular transfer which can be either a fixed monthly amount for a fixed period of time at a fixed excahnge rate or a flexible monthly payment for which you need to initlaly fix the payment with an option to amend but with a 'spot' exchange rate i..e the exchange rate at time of purchase of currency. The regular transfer option is a £4 transaction fee and of course you don't forget to make the payment! The funds are usually available within circa 3 days of the date of transfer.
I hope this helps.
Ronnie