These shocking figures were unearthed by a Plaid Cymru AM's Freedom of Information request, which also revealed that none of the eight minimum wage inspectors covering Wales are based in the North.
It's more than likely that this figure represents the tip of an iceberg, especially in areas like Wrecsam.
So is your boss or ex-boss a minimum wage cheat? Are they failing to pay workers the minimum legal rate and therefore breaking the law?
If so, Plaid Cymru in Wrecsam wants to hear from you. Contact us in complete confidence with details of the companies breaking this law.
Anyone paying less than these rates is breaking the law:
16-17 yr olds: £3.40 (rising to £3.53 in October)
18-21 yr olds: £4.60 (£4.77)
22 and over: £5.52 (£5.73)
Contact plaidwrecsam [at] gmail.com or text 07747 792441 with your information.