This is not the first time that BASSA has registered a domain name with the intention of "unfairly disrupting the business of the [other party]"
Cabin Crew 89 had the same issue back in 2002, they took BASSA to court over it and won. PCCC take note perhaps, although I imagine that such action is not financially viable for you currently.
Copy of judgement - Cabin Crew 89–v-
BASSA