Dear Mr. Peter,
I wish to thank you for allowing me to keep my frozen food in your store while my freezer was being repaired. My stock of frozen food could have easily been spoiled if I had no place to keep them when my freezer broke down. I have to say I managed to avoid making a big loss.
My freezer is repaired now and I have made arrangements to have another one purchased so that I will not be caught unawares again if a breakdown occurs in future.
Once again, thank you for the favour you gave me. I owe you one.