These letters alone should make the hairs on the back of the neck rise. The use of the word lovingly in this context is so inappropriate that it beggars belief. At first I thought it was a scam.
Bethel was always jokingly referred to as the monastery in GB, now it officially is. There is nothing new in any of it but anyone who responds to such a one sided offer has to be "mentally diseased". You must take a vow of poverty but if you get more than a sneeze, there is the door. Find you own way home. Keep warm and well.
The love only exists in the hierarchies' delusions. If I got that letter I would run a mile.