Standard Platinum card holder here. I just had an offer of $550 statement credit if I spend $4k over a three month period. I felt it was a generous offer considering I would almost certainly spend over $4k in the three month period anyway. I am a 4-decade AMEX card holder and I had significant issues with Centurion Lounge access on several occasions in 2021. Both factors helped my case I believe. I do have to hold the account open for at least 12 months.