Here's USBC Rules regarding withdrawals.
Withdrawals
163. If a member leaves the league without notice and still owes fees, what should an officer do? When
a member is accused of leaving the league without notice and owing fees, the league should try to resolve the
matter prior to disciplinary action. Many bowlers are not aware they may be suspended from USBC membership
for nonpayment of league fees. If payment is not received, a written complaint should be filed immediately with
the board and copied to the delinquent member. The provisions of Rule 115b must be followed. (See Rule 115b for
help in processing nonpayment cases.)
164. If a member leaves the league and is delinquent in their league fees, how many sessions can they
be charged for in accordance with Rule 115b? According to Rule 115b, Item 1 (d)(1), the bowler may not
be charged for more than six (6) sessions. Immediate action should be taken by the league upon discovering an
individual is not returning and still owes league fees.
165. Can the league adopt a rule requiring written resignation to determine the exact date a bowler is
no longer a member? No, Rule 114a does not require written resignation, so a league requirement would not
be enforced by USBC. If the captain was aware a bowler did not plan to return and the secretary was notified, then
the notification requirement under Rule 114a would be fulfilled, even though the league rule has not been
complied with. When a resignation is challenged, the question to be answered is whether those involved were aware
the individual had actually resigned.
166. If management has banned a league member from the center, do they qualify for prize money
through the league? Are they required to give two weeks notice to the league? When a league
member has been banned from the center, it is considered a forced action. The member removed qualifies for a
portion of the team prize money prorated on the number of weeks the individual contributed to the prize fund.
League members removed by the center are not required to submit a two-week notice as stated in Rule 114a.