So the real question is: can we get a single entry visa two times in the same month?
Yes. There is no such restriction listed on the eVisa website. You can apply for the second visa as soon as you are out of Turkey. The only restriction is the famous 90 days out of 180 rule.
Focus on the last sentence of this Q&A.
The duration of 90-day-stay on my e-Visa expired and I have come back to my country timely. How many days should be passed until I reapply?
If the duration of 90-day-stay on your e-Visa expired within 180 days as of your first entry date, you can reapply for an e-Visa 180 days later starting from the first entry date. If you spent some part of the duration of 90-day-stay on a multiple entry e-Visa within 180 days as of your first entry date and the rest expired after 180 days elapsed as of the first entry date, it is possible to reapply for an e-Visa. Anyway, please keep in mind that you may stay in Turkey up to 90 days in every 180 days starting from the first entry date.