Mine a 4 digit number and no problems apart from trying to get a row that wasn’t at front.
Have you updated your log in account since RUFC changed the system (I had to)
No surprise someone’s having problems though is it
If you do it on line at the mo, (not tried phone yet) I think a season ticket holder can buy for non season ticket holders , but only if they all have a club customer number ???
Ok silly , may be it's an iPad thing , I will try an actual computer, thanks for the update
10 tickets in Cat 2. No issues at all