A society shall have a charge upon the share or interest in the capital and on the deposits of a member, past member or deceased member and upon any dividend, bonus or profits payable to a member, past member or deceased member, in respect of any debt or outstanding demand owing to the society from such member or past member of deceased member and may set-off any sum credited or payable to a member, past member or deceased member in or towards payment of any such debt or outstanding demand:
Provided that no financing bank shall have a charge upon any sum invested in such bank by a society as reserve fund if such bank is not the sole creditor of the society or upon any sum invested in such bank from any Provident Fund nor shall such bank be entitled to set-off any such sum credited or payable to the society in or towards payment of any debt or outstanding demand owing to such bank from such society.