Since few days Revolut offers exchange rate for GBP-PLN much lower than interbank rates really are. Actually now it offers lower exchange rate than high street exchange points, banks, post offices etc. At th moment (and few days back) revolu gives around 4.77 PLN per 1 GBP. All this time rate is around 4.84. During weekdays, didnt have a chance to check it over weekend yet.
Could you please log out and log back in the app? Let me know if it works.
That did the trick. Showing proper values now.