What are the id and the amount of refund of the booking that incurred the most times of payments?
return bookings ;return times of payments of   #1 ;return number of #2 for each #1 ;return #1 where #3 is  highest ;return id of #4 ;return refund of #4 ;return amount of #6 ;return #5 , #7
['select', 'project', 'group', 'superlative', 'project', 'project', 'project', 'union']