Tenant isn’t paying utilities even though lease requires it

[Blake Cromer]

I recently bought a duplex (first investment property) that has a tenant under contract until the end of March 2020. The lease states that the tenant pays all utilities. The previous management had the sewage in their name. The sewage isn’t metered for the duplex, so it’s billed as one with a fixed rate. That’s why it can’t easily be put in the tenant’s name and it is currently in my name. For the first sewage bill, I marked up and emailed a copy on the 15th showing that the tenant owes me half on the 1st the following month. The tenant paid rent, but is now 6 days late on the sewage. The lease states that if they fail to pay utilities that is in the management’s name then management can disconnect service without notice. There’s nothing about fees on unpaid utilities. Tenant hasn’t responded to multiple emails. How would you handle this?

Thanks in advance for your input.