Texts from Android Phones

I am not receiving texts on my iPhone from my android phone friends. I am not receiving texts from two different android phones, not just one. My wife is receiving texts from these phones on her iPhone when I enter into a group chat with these android phone users, but I do not receive them. The android users can receive my texts, but I cannot receive their texts. I have recently switched phones from an iPhone 13 to an iPhone 15 and this problem is and has happened on both phones. I have gone through all the steps to fix this that I found when I Googled this problem, like resetting my network, etc. This problem started happening when I switched from Verizon to T-Mobile.

We recently switched from Verizon to T-Mobile and this problem started during the process of making this switch. T-Mobile has told me that Verizon needs to "release my phone number" or "re-release my phone number" or "rebroadcast my phone number" to fix this issue.

How do I get this issue resolved?