I work in a very small team of 2 plus our boss. We all WFH. My colleague is paid a London wage (she mentioned hers without me asking) which is over £10,000 more thank I get.
She makes a lot of silly mistakes. For example she replied to a forwarded email so the recipient of her reply did not include the original sender who had sent to query and needed the answer to which she replied and she wondered why the issue was outstanding. Another example - she does not check her work thoroughly so once (a lot of the times!) something went out with a mistake which was later returned and we had to correct it.
Our boss doesn’t get involved usually so quite often these errors and corrections are made without getting noticed.
However I feel like telling my boss she did this and that and I picked it and rectified it etc. but I don’t. It’s too pity. At the same time I feel disheartened because I get paid much less. For the context I did ask for a pay review based on my performance and my management agreed I am a high performer but the company as a whole only had a certain amount in the pot and none of us got more than inflation.
AIBU to feel like telling my boss my colleague has made a pity error?