BSA Polaris Help.

[BenjaminCadd 109]

This summer i have decided to get a new springer my supsersport is 10 years old and still going strong but showing its age, i shoot mainly second to ferreting so cant say im much in the know about the latest rifles, so went to the same gun shop i got my old bsa from they advised a 6 month ex demo old BSA Polaris underleaver .22 with Hawke Scope 3-9 x 40 Brand new, i didnt doubt them due to the proof my Bsa is still going well at 10years and they are a reputable gun shop so bought it there and then........unaware the fact BSA have sold out to Gamo.... then today first time i have realy got it out the Saftey catch is faulty, tap the trigger a few times while it is on safe and the catch eventuly slides over to fire on it own accord also on closer inspection you can tell the quality is know where near what the old Bsa where?

So by rights the Rifle is not fit for purpose with a dodgy saftey catch? I should be able to use the money i paied and put it towards something else?

Many Thanks.