I'm surprised as well. I must admit it's been 20 years since mine was done, but at the time there was a waiting list. I wonder if the person doing the lathe beds has retired, or maybe they're just so backed up due to the pandemic that they just can't fit it in. My bed was sent in by a shop in the repair business. Maybe they're catering to the professionals, or just not doing it for individuals any longer.
I'd call back again and ask some particulars like:
1. Is the service temporarily or permanently no longer available to individuals?
2. Is the service still available to professional shops? (if so you may be able to contact a shop in your area. It's possible they may send it in for a small fee)
3. If the service is no longer available to anyone can they recommend someone who still provides it?