I surrendered 88 shares of stock and only received payment for 17 "entitled" shares. Please explain why this would have happened. Thanks!

What were the conditions under which you "surrendered" shares? Was this part of a spin-off of a subsidiary from the company? Or perhaps an offer from a major investor to buy up shares from shareowners? Quite often these types of deals have limits in the number of shares will be bought out or exchanged for stock in another company. Tell us the company whose stock you own and the deal that was offered and we can research it further for you.