Telkom Roaming Partner Nightmare!

Ever since Telkom Mobile changed their roaming partner from MTN to Vodacom I've been having endless problems! It switches to "roaming" even when there is Telkom 4G signal and then tells you your data has run out (when you still have data). There is a way to manually switch back to Telkom 4G but it switches back to roaming every day! Telkom please sort this mess out!