This isn't what we want you to experience, Leticia1982. 

I've checked our records and found out that the investigation about this has been marked as closed by our engineering team. 

Since you're still experiencing the same issue, I'd recommend contacting our Support Team. We'll have to conduct a set of examinations to find out why you're still experiencing the same problem. They might create another ticket if needed.

 To contact them, you can follow the same steps shared above. Utilize the Help icon and click Contact Us.

Keep your post coming if you have other concerns about managing your customer lists. Have a great week ahead, and stay safe.