Bought what was suppose to be an Aeroquip 340LPH fuel pump from specific for the SC's and it was the wrong pump

It was a 340 pump but is geared more towards honda's, GTP's

I contacted him as soon as i found out it was the wrong pump and he said that he would send me a refund and off and on we communicated
but hasn't made good of his words yet

Now no replies and just ignores me completely, don't have money to keep throwing away for fuel pumps so my car sits and frustrated!!!