I've never got a bent one. I think you can also report one damage and they replace it.
found this on their website
What do I do if my copy arrives damaged?
If your copy arrives in an unacceptable condition contact Marvel Subscriptions immediately for a replacement copy. Marvel Subscriptions maintains a limited supply of previous issues for replacement purposes. If the quantity of lost comics reported becomes excessive, however, we will place the account under review and notify the customer. Reporting a title as lost in no way reflects negatively on your account. Monitoring areas of loss helps provide valuable information to our postal liaison to ensure the effective delivery of Marvel Subscriptions.
What if my issues frequently arrive damaged?
If your issues frequently arrive damaged, please contact us for a further explanation of the situation. Please keep in mind that your mailbox may be too small for the magazine. If this is the case, please try to arrange with your letter carrier to place the magazine in a different area. Effective June 2002, all re-shipment for domestic subscribers will be limited to two (2) issues per subscription. In addition, subscribers requesting re-shipments will be asked to communicate any problems with delivery to their local postmaster.
The procedure is as follows:
After the first call for a re-shipment the subscriber will be asked to request that his/her local post office place a publication watch on the subscription. The subscriber will need to contact the local postmaster and fill out a Magazine Watch PS Form 3721. This will allow the postal service to monitor and discern the source of the problem.
When a second re-shipment request is made, the subscriber will be asked to submit a formal complaint to the local post office and have a copy forwarded to our offices. This complaint will be passed on to our liaison at the USPS for further investigation.
