Welcome to TPG Community!
We were able to locate your account using your community details and have run some remote test.
We've seen that you were getting around 2.9 Mbps Downstream and 618 Kbps Upstream before, but we've refreshed your connection and now you are getting 6.5 Mbps Downstream and 1020 Kbps Upstream on your modem.
Based on your distance from the local exchange/server, your modem is getting a good speed since you are around 2.7 Km away from it.
Kindly check your connection and get back to us if it's still happening.