If you don't provide evidence for DVLA records the company making the plates are breaking the law (not that it matters to purchaser). No plates can be made without a couple of bits of info (since 2006? or 2008?), to prove who you are and that you have a right to the registration number, then its held on record for police/DVLA for 2 years (I think), Passport, V5C, retention doc, driving licence, recent utility bill or similar (few others i can't remember).
If you do get them made without any info it seems very slack on the part of the company, so if you have the info take it with you wherever you get them made ,as you should expect to be asked.