Hi - so you'll need to concatenate all the values from you repeating field into a single field, then map that single field.You have a couple choices here - you can use a double eval formula to concatenate the values, or you could use the qRules delimited list command.
I've emailed your form back to you with a new field added to your repeating group. I modified the mapping file you sent to use this new field instead. Put the field on the form, and you'll see as you add reasons, the field will concatenate them, separated by a semi-colon. Now when you submit to the list, you'll get all the data from the repeating node.