"I hope everything went well with your operation [his back was operated on that day]. I am just writing to let you know that for the next four weeks we will pay you your normal 45 hour wage, should you not have returned to work after this time we will pay you sick pay only."
"Due to the fact that you have been unable to return to work after the 4 weeks indicated by yourself it is our intention to deduct from yourself£52.50 per week in lieu of sick pay paid to you in advance i.e. your wages were made up to full pay for the first four weeks, until this amount has been reimbursed to ourselves."