Ok, they send me a sim card for data usage, but I accidentally ported my VODACOM number to rain, and now RAIN does not want to assist me in porting my VODACOM number back to Vodacom, they keep on declining it, I can't make any phone calls or send any sms

Ok, they send me a sim card for data usage, but I accidentally ported my VODACOM number to rain, and now RAIN does not want to assist me in porting my VODACOM number back to Vodacom, they keep on declining it, I can't make any phone calls or send any sms my number only works on WiFi. Due to that I am losing business