Excessive bill for usage during internet outage

Hello -

I'm reposting this message because I don't think I previously did it correctly.

I live in a senior retirement community that has a bulk contract with Comcast. Comcast was recently doing a network upgrade here. On May 12 a message was sent out that there was a problem with the work and that they would be reverting to the old equipment. My service was out from the morning of May 10 to the afternoon of May 14 (a total of almost 5 full days), at which point I was finally able to get service restored. 

I am the treasurer of a non-profit organization and I work from home. My Comcast bill is usually around $17 for a month; however my bill for the current billing cycle (5/6 to 6/5) is $150. I could not get along without internet access during the period in question and, since I am 84 years old, it was not possible for me to move my computer and all my paper files to another location. Because of this, I was forced to use my phone as a hot spot. 

I am writing to request a credit for this huge bill overage, which was not my fault in the least. I've tried to call the local Comcast technical representative several times during the last two weeks, but my calls are never returned. Thank you very much for your assistance.

Susan [Edited: "Personal Information"]