I bought their data through voucher even now I haven't receive it but the status says active when I try talking to them on WhatsApp the blue tick and their phone line it goes straight to voice mail. I want my voucher back if they can't provide me with dat

I bought their data through voucher even now I haven't receive it but the status says active when I try talking to them on WhatsApp the blue tick and their phone line it goes straight to voice mail. I want my voucher back if they can't provide me with data that I brought