Depending on the date of travel, it can take months. It's done by priority order by date of travel, and if there is disruption - which there hasn't been recently - then the back office concerned only process travel for the next day or two. If this was a US or Canadian dollar transactions further complications apply, please revert if that is the case. But welcome to Flyertalk and welcome to the BA forum N.Somers, normally it's nothing to worry about. Please make yourself at home here.