I have a T4E for which I thought had all the benefits paid to me during Covid which I entered in the correct form. I finalized my tax return & then a couple of days later I received a T4A for $2000 for CERB income. I entered that & it reduced my refund by a $1000. I thought that only $250 in tax had to be paid per every $2000. Now I'm worried that I've done something wrong for my refund to be reduced by that much.