I am 18 and work as a p/t sales assistant in a major High St store, when I went to the interview I was offered 8p/h, this was the same wage as my previous role in retail. Around 2 months later I received an email asking me to sign an e-contract which stated I would be paid 7.40p/h. As this was not the same as the original offer I refused to sign the contract and spoke with my Manager. The contract was repeatedly sent to my email address and I never signed it until I received a new one stating the correct pay. My manager spoke to the HR manager and they drew up a letter apologising for the incorrect pay and stated I would be paid 8p/h until I reach 21 and any o/t would be at 7.40 which I agreed to, both myself and my manager signed this.
This is the only document that I have signed.
I was called into the office last week and told HR had had multiple conferences about my pay and it has now been decided that in the next 4 weeks they will be taking it down to 7.40ph. I think the reason there was a confusion at the start was everyone but me in the store is 21+ and they have realised I am 18 and should be on minimum wage.
I have just joined a union but cant seek advice until 4 weeks into membership.
Any advice on where I stand would be appreciated.