Sim location detected wrong – Roamer-Goodbye Roaming &Cheap international calls Review

When I tried to verify a sim card it displays a message: "local sim required: sim: cs, location: rs", obiviously a bug, cs is old iso code for serbia and montenegro, rs is iso code for serbia, I can't use the app because of that problem.
Review by Mark Franklin on Roamer-Goodbye Roaming &Cheap international calls.