Text acceptable as "written" notice?

[Dave S.]

So I have my opinion on the matter but would like everyone to weigh in... Tenant texts me the following: "I was waiting to be sure of a date before I said anything but my plan is by April to be out. I was going to pay feburary rent and then say to use my last month rent for March." ... I responded back and said to keep us posted with your plans...as I took this as its a plan but plans change... I am new to managing my own properties but I know that the lease states the notice needs to be writing and atleast 30 days in advance.

1) Is it my responsibility to tell the tenant that a written notice is needed and a verbal / text is not acceptable??? (She called it verbal and is saying she didnt know that wasnt acceptable).... side rant... what adult believes they can enter into a legal contract by signing papers and then exit that same contract by sending a text???

2) what would others do in this situation? If there had not been other discussions (that happened today) leading me to knowing she is definitely moving out I would not of known... Its 6 days past the 30 day notice for her to move out on the 1st...thoughts? Should we charge her the 6 days? on the other hand its just 6 days??? and she can cause alot more damage to the property than the cost of 6 days if she is bitter.

Thanks

Dave