Audi rims (BBS) on VW Golf?

Hello. I have already searched the Internet and find, who had thought, numerous different answers. The following: We have bought a VW Golf VII Variant 1.4 TSI BlueMoution, BJ 2014, 125 hp (0603/BPK). Of course only with summer tyres. Of an Audi A3 we have BBS rims with winter tyres (KBA46418). In addition, BBS also has an expert report on the issue of ABE. Under certain conditions, which I do not understand, these are also allowed for a golf. The BBS rims are 6Jx16 ET50 with 205/55R16 tyres and a wheel load of 600kg. In the vehicle letter it now says that 6Jx16 with ET48 are allowed. There is nothing in it about the load capacity. A colleague said that you can do something with distance plates and longer screws and do a single acceptance at the TÜV. Would still be cheaper than new rims and tyres. Since I don’t know about this and I didn’t really understand this with the press-in depth, I would like to know if this 2mm press-in depth makes any difference? Whether you really need distance plates and above all (I have found nothing about that) whether the wheel load of 600kg is sufficient. I need a single pickup one way or another. Only with what means does it work? By the way: The VW dealer and BBS themselves only confirmed to me that the rims are not allowed to do so. No one has told me what to do to allow them. Thank you already!