Being overseas at present, on 2 March 2023, I advised TPG Mobile Support Team (TPG MST) by email that I was still unable to receive SMSs sent from Australia to my TPG mobile number, in spite of having topped up my international roaming pre-paid credit by $50. On 5 March, TPG MST responded, advising me to set my Android's "Preferred Country Provider" to manual, to try to search and connect to international roaming through a permitted local provider. After trying this procedure numerous times, and though finding 3 permitted providers, I was still unable to connect through any of them, so on 6 March, I provided TPG MST with relevant details of my attempts. On 7 March, TPG MST responded with a short list of questions, seeking further details to assist TPG network engineers find a solution. I emailed back the answers the same day. Two weeks have passed, and I have not received any acknowledgement from TPG MST that they received my email of 7 March, nor from TPG network engineers that they are working on a resolution. I sent a follow-up email on 15 March, asking TPG MST to confirm if they had received my previous email, but I have received no response to this email either. In relation to my TPG mobile service international roaming problem, I had previously submitted (on 14 February) an online TPG Confirm Identity Request form. Due to the failure of TPG's mobile international roaming service, I have been unable to receive OTPs from TPG or other Australian organisations via SMS for almost 2 months.