I want to give a zero star to stacy harder

I want to give a zero star to stacy harder
This guy wants me to delete this review

Service department ripped me.. charged me for synthetic oil change and put in conventional oil.
And oil change reminder for 5000 kms
I called back twice and asked
Staff doesn't really care

After this review a guy claiming himself boss phoned me.
Arguing we recommend 5000 kms for synthetic oil life
Are you really that stupid
Or think the people are.
Worst place to go for any kind of service
Only thing smp cares about is 5star review on google
Guy get working and train your people better

Update
I was there recently to get a weird sound looked up in my car
They wanted me to delete review
To which i refused
And they refused to service my vehicle

Childish