What would happen if a company that has "money back guarantee" included in their contracted rates with UPS decided to do a marketing campaign to 50,000 homes in the same zip code. The company decides to send all the letter envelopes out on a Friday UPS Next Day Air Early AM for Saturday delivery. Obviously that would flood the system and there is no way UPS would be able to make service on all those envelopes. Would the company be able to have the charges for all these shipments refunded since UPS didn't make service on them? Or would the money back guarantee be void since the shipper flooded UPS with so much extra volume?