hi paul,me and my husband are in the same situation he get paid every 4 weeks 13 times a year,his monthly earning is less than 1550 but his p60 is more tha`t the minimum wage require,did u submit your p60 and a letter from your job stating how u get paid?coz im also very worried regarding this matter,i asked my husband to request a letter from his job explain how he get paid,hope it will work...anyway goodluck.