Permanent Residence Card/

[Henry_07]

Hi everyone,
I'm Married a Eu citizens i entered in the uk November 2008 and applied for ILR 5 years later 0n 2014 i got my Permanent Residence Card, in July 2015 my child was born and automatically received a British Passport, everything was fine i always travel to my country and i never have any issues i have a good job, i was a bit slow to applying naturalization i was supposed to applied in March but i decided wait until all the Covid passed haven't set u my settled status yet but i will do now. recently i did travel and stay 2 months out of the UK. I return last week before starting my new job. I passed through the immigration and i give the immigration officer my both passport the old one with my Permanent residence Card and the other passport they asked the usual silly question how do get this permanent card bla bla i answer im married to eu citizen were both residents in here my daughter is British, they look at me asked when i left the country i said January until there everything it was ok he give my passport back saying that i need to self isolated for 10 days fine . Yesterday checked my passport and it was a stamp saying leave to enter for Six Months employment and recourse to public funds prohibited ... i'm so furious i have to start a new job next week and i have this stupid stamp on my passport> Im pretty sure the immigration officer made a massive mistake. this cannot be happen im resident uk .

Does anyone can give some advices in what to do ?
Massive thank you to all!

[kamoe]

Yesterday checked my passport and it was a stamp saying leave to enter for Six Months employment and recourse to public funds prohibited

What's the date on the stamp?