Add relative timestamp to unique code expiry
Move footer text to description

Less ambiguous variable names
Reformat for readability
Improve db interaction efficiency
Minor wording change/fix

Standardize general flow across each script
Provide more information during deletion (estimated time until completion)
More efficient flow between free/premium
Format for better readability
Reduce db interactions where possible

Use $count variable instead of dbCount call to determine whether or not to loop
Above change allows moving this call to delete more entries per CC execution, changed ETA calculation to reflect this
Avoid extra dbDelMultiple calls, previously relied on 0 entries being deleted to stop