To expand on what dood said, NickServ usually has a 'sendpass' feature, try /nickserv help sendpass or /msg nickserv help sendpass.
Really, in the case of Services, as they have nothing to do with mIRC, asking on the network's #help channel (or whatever other official/recommended help channel they have) is a better option than posting here. The people that help there are much more likely to know their own Services package better than we do.
Regards,