So, the place is:
TeTe's African Hair Braiding
114 Stoughton St
Dorchester, MA 02125
The phone number is 617-282-7800 or 401-952-6309.
I made an appointment for Saturday when I was going in, but it mostly seems to be a walk-in place, from what I gathered, so if you don't get there on the early side, you may have to wait a while either for another stylist to get called in or for one of the other clients to be done.