It looks as stark a choice as that to me since Foma do not believe it has a problem so there would appear to be no further help to come from Foma
pentaxuser
I'm not sure you followed the whole discussion. Foma very much acknowledges the problem and provides an explanation ('hardened anti-halation' layer - as per email to myself and countless others). This has been discussed through and through in a couple of threads on here, too.
Further to that, Foma states the problem is with a particular batch (021056-3) and has been corrected in newer batches (for example, 021256-03).
Honestly, it couldn't be simpler:
1. contact Foma with evidence of purchase and evidence of fault
2. ask for replacement.
Seems to me like excellent customer service, contrary to what you are insinuating.