Double desuction

<p>I took a cover for my Huawei P9 elite, unfortunately, I take two sim-card. I have noticed they are deducting on both phones, I phone them to fixed the problem and reimburse my money. I was promised that they will cancel one and pay back the money. Up to now that has not been done, I have been calling them on ********** 007 line is always busy and cut off, tried to lay complain about ********** 000 was told need to call them (Csurance). I don't know what to do please Help</p>