are you looking for used bowling stuff? Try your local craigslist.org for used stuff you can buy from people locally. Otherwise sites like or bowling.com, etc. for new stuff.
Most bowling alleys have a pro that works there. Talk to the pro and see if they offer lessons.
The moment an umpire feels that the bowling of wides is deliberate he can summon the captain & warn him. If it still continues I feel the bowling team could be scratched off & penalised further ( However this point may need further confirmation)