I am reproducing here my listing from delcampe.com, because it's instructive about what can you still do, when FIP and everybody else tell you that there's nothing you can do, in the given context.
" CONDITION: uncirculated, collector-created, dorincard (= custom maximum card / maxicard) created with a cut-out postmarked stamp from a First Day Cover with the series of 4 different stamps featuring Ying Ying and Le Le giant pandas.
- YEAR: I have obtained the FDOI First Day of Issue PICTORIAL POSTMARK on each (!) of the 4 stamps, from Hong Kong, China, July 1, 2008.
- CATALOG VALUE: Only 4 such SPECIAL FDCs (First Day Covers) were created for me by my friend in Hong Kong. I have already cut 1 FDC to create 4 custom maximum cards (see my other listings). Depending on the popular demand, I may choose to use the remaining 2 FDCs (because I already sold 1 of these 4 FDCs) to create custom maximum cards, with one postmarked stamp (cut-out from 3 FDCs) per postcard.
I prefer to create and collect maximum cards.
I have seen other, official FDCs having cachet, but a NON-PICTORIAL FDOI postmark.
For your information, I am showing images of all 4 stamps, and of other postcards that I could use ON DEMAND, WHILE SUPPLIES LAST, to create a custom maximum card according to your preferences.
Contact me for details.
My friend from Hong Kong told me, if I understood correctly, that when Hong Kong Post applies a First Day of Issue date or pictorial postmark on a glossy maximum card presented by a collector, the ink WILL SMEAR / SMUDGE. Unless the collector rips with tape the UV protective layer of the glossy postcard.
Also, Hong Kong Post (HKP) usually applies only one (1) pictorial postmark (or a non-pictorial postmark) onto several stamps (a series of 4 here) affixed to an official FDC.
In other words, it´s impossible (again - if I understood correctly) to obtain from HKP a FIP-traditional maximum card, with a CLEAN PICTORIAL POSTMARK on your glossy, untreated postcard.
That´s why I had to find a solution."