Could anyone recommend a discreet guarantor lender or an alternative means to pay these off in a similar time scale perhaps please?
No. QuickQuid are a PayDay loans company that charge thousands of percent interest. If you cannot settle with them yourself then it is not fair to ask any friend or family member to settle for you.
Unless you are able to pay off the payday loan either on the next pay day or the payday after, you should visit your local Citizens Advice Bureau and ask to speak to a debt adviser. There are various options that are available other than spending most of your working hours earing money for organisations like "quickquid".