Original sentence: ASMALLWORLD successfully delivered several hundred airport car services to early joiners, leading members who attempted to book after capacity was met to be upset that they paid $120, and did not receive the valuable service promised, despite having used so many of the other services offered
Edited sentence: ASMALLWORLD successfully delivered several hundred airport car services to early joiners, leading members who attempted to book after capacity was met to be upset that they paid a moderate fee, which works out to under $10 (USD) per month, and did not receive the valuable service promised, despite having used so many of the other services offered