nokia 6303 ni works only earphones, not on normal speakers

My Nokia 6303 ni works only on earphones, not on normal speakers

I have done a FULL FACTORY RESET.

This had the screen replaced by a so-called repair shop in Basingstoke Hampshire.

The shop assistant tried to sell me all sorts of phone cards first. saying that the ee card would not work.

That aside. He replaced the screen for £30 and now the Nokia 6303 ni works only on earphones, not on normal speakers

He says now that the speakers need replacing and rejects all responsibility for the NEW FAULT.

He has already charged me for more than a good replacement phone, lost all my data and now wants to suck more CASH, AS HE ONLY TAKES CASH HE SAYS.

is there any other fix without this crook getting involved, please?