The Members Loan Fund deposit may be withdrawn at any time the borrower does not have an outstanding loan. It may also be used to pay off the remaining balance of an outstanding loan, if the borrower requests it. If the loan goes into arrears, it is used to reimburse lenders for the amount they had lent.
The lifetime membership fee is currently zero, but at the time this borrower joined, it was 10% of the starting credit limit chosen by the applicant. (So someone choosing the default starting credit limit of $10 would pay a lifetime membership fee of $1.)
The above costs are only paid once, at the time a borrower first joins Zidisha, and entitle the borrower to lifetime access to raise loans. You can learn more about why we developed a lending model that front-loads costs here: http://www.huffingtonpost.com/julia-kurnia/the-story-of-zidi...
The 5% service fee is a flat percentage of each loan amount, and is independent of the loan term. If Ms. Mwangi opts to hold the loan for two years, she would still pay only $25.47.
We'll aim to make this clearer in the cost breakdown explanation. Thanks again!