Glad it's sorted in the end.
If HR had anything to do with it, you can be sure it went wrong to be honest. Worst people in any organisation.
When I began my new contract with a slightly increased salary my first pay was still at the previous amount. I emailed the HR payroll people and they apologised saying it would be correct next time with backpay. Sure enough I was again paid at the old salary the next fortnight and no backpay was received. This time I found out which floor they were on and who was the person to speak to and went down to sort it out face to face and they said they'd do a manual backpay which eventually came a week or so later.
With a new and quite significant pay rise coming in this month I don't expect to actually be paid it without having to personally go down and question why it hasn't been actioned.