Did I do the right thing? Tenants late in WI.

[Samantha Klein]

I own a 4 bedroom house that rents for $995.00 a month and placed tenants Aug 1st of this year. The tenants did not pay rent on the 1st and I sent a text reminding them rent was due, fast forward to the 4th and I sent another text to which I got no response. The next day I knocked on the door and served the 5 day pay or quit notice. The tenant answered and of course said they've been sick and missed some work, said "I was just getting ready to text you", now that was a chuckle. She texted yesterday and asked if she could pay $400 and the remaining plus late fee on the 15th. I told her no partial payments and that rent needed to be paid in full within the notice period. I always take care of issues I am notified about within 24 hours and I absolutely expect rent on time and in full. I feel good about my decision, just hoping I don't have to evict her. Would you have done anything differently other than serve the notice sooner?