I took on extra responsibility in November, my area manager said he would put through a payment (£50) per week as a thank you. Have asked every month since about money but never received it. Last month both my area and line manager assured me it had been out through and made a big deal of apologising to me etc etc. Pay day today and still no extra payment. I stopped the extra duties last month so the monies owed is about £1000!
What would be the next sensible step? It is a huge national company, but unfortunately payroll don't speak to anyone but managers.