LCWRA backpay

Hi after a accident at work AUG 2023 i was signed off work by my GP in Jan 24 ,i passed the LCWRA medical assessment, in my journal i had things to do on my to do list, i called UC up on phone and was informed i did not have to do anything and that i would receive backpay in March 2024. last week i called UC because i did not recieve anything, who said i must put request in my journal and the case manager would respond ,i have had a response back in my journal saying i am not entitled to any backpay i am confused as to why i was informed i was entitled to backpay, and then told i was not entitled. Your advice would be apprecated
thank you