Be careful of Walmart Spark tip baiting

I had a recent job on Spark that was supposed to pay $24 which it was a pick up at the local Walmart and three drops. So I went back and reviewed all my trips this week and noticed that this job paid about $11 and $13 in tips however the tips were completely wiped out by one or more customers.. customers have 24 hours to remove their tips. I called Walmart support and they could do nothing to help me. This is not fair to the drivers. Walmart should cover a portion of these tips because they’re advertising a $24 job that ends up paying less than $11 for about 50 minutes of work. Be careful my friends.