Pathetic/Disgusting service

In July I called clicks to advise that I no longer get points when filling up at engen. They referred the matter to engen and 6was advised that my points was stopped due to an investigation. I do not get any updates or calls unless I call or email them. I was then advised that there was a huge amount of points give and because engen is "thorough" they need to investigate. I had no issues with that but we are in the 11th month and it's been 4 months since they are investigating with no updates and feedback just saying that the garage in strandfontein has no management and therefore they are not able to get feedback. That is not my problem and for such a big company it shouldn't take this long to investigate something especially if you claim to be thorough. You fail to update the client. You failed to even give details as to why the card was blocked to begin with. You clearly do not seem to care because it would've never gone this long. I even suggested to clear all my points from July up until now seeing that they "cannot" get hold of management at that garage but no still nothing and no ETA on my issue, no urgency whatsoever and keep conveniently "waiting" on the lady that deals with this to pick up the issue after 4months clearly she is still too busy. Engen claims the amount of points I received from the garage was to the value of +- R37000 how the hell is that possible clearly there is a damn mistake on the garages' end because that is impossible to fill up 1 freakn vehicle but again they make it seem to be the client's fault because it took them 4 months and still going so clearly they do not give a ****. I will give them a damn 0 and not recommend them to anyone