Klaviyo: Email Marketing & SMS

Pathetic support. Over-priced.
No way to cancel the account. I have to place a "cancellation request".
And they don't reply to the request for 5 days and charge my card.
Even after showing them the charge they have not replied.
Worst support ever!

I'm very upset, I spent hours creating emails for my customers and they are not sending. Some send and some don't send. I just realized now they have not been sending for 2 months. Very Very Upset!

Customer service is TERRIBLE! Also, Beware if you use their SMS, you are putting your company at compliance risk. This last issue is our final straw with them. They locked (disabled) our account automatically for uploading a list of email addresses that were legally collected from an event we were involved with. So if you don't mind risking your account being shut down until one of their "customer service" reps gets to your ticket within a few days, by all means give them a try. If you want to have a reliable e-mail service, I'd recommend looking elsewhere.

We emailed the company saying we wanted to downgrade our plan because we are no longer going to use the SMS portion of the plan. A few days alter after we asked to be downgraded they charged me another $1330 for the next 30 days even thought we came nowhere close to using our previous month's full SMS plan.

Used to be good but now the emails they sent out during my campaigns keep getting bounced for no good reason - one of which is my personal email and another my friend’s email. Tried to send a campaign just to my email add and I don’t receive it at all. And no it’s not in my junk box either. Ridiculous if that’s the primary function of this app.

Great App but the support is one of the worst I have ever experienced, dropping it asap and I would NOT recommend this to anyone unless they fix their support, GOOD LUCK IF YOU TRY THEM !!

I am struggling to get any sort of help or responses from customer service. They are unwilling to help me resolve issues that I thought would be very easy. I am very disappointed and am looking for an app that wants to help their customers.

I pay over $900 / month and they don't even have phone support. Constant glitches delay product launches.

Just installed and got this:

Your account is disabled. More information.
Your account is under review by our Compliance Team. We're sorry for the delay - to make sure all senders have a great experience, we periodically review active accounts. You should hear from us within one business day.

Double opt in on free plan means you will have no sign ups. And there is no way around it. If you have a 3rd party sign up form (like Privy) Klaviyo will still send a sign up confirmation request once the address is synced to the list.
I don't mind paying for a good service, but not to a company that messes me up in such a sneaky way. Will sing up for a paid plan elsewhere.