Mailchimp conditional merge tags - if-statement

Question

I'm new with email marketing and I would really appreciate if someone could help me to show what i'm missing in conditional
merge tag blocks. I've made numerous attempts in building the template with |IF:| |END:IF| formula, based on the specific fields in my contacts lists, but nothing worked.
My colleague who is on the same knowledge level insists that this option is available for paid users which I'm not and says that I need to choose a paid plan in order to
proceed with this. Is this correct? Or I just need to have a better look at the formula?

Answer 1

I would say its more about you looking at your logic. Here is the URL from MC's site showing what you can do with their conditional statements:
IF
*|IF:MERGE|*
content to display
*|END:IF|*
ELSE
*|IF:MERGE|*
content to display
*|ELSE:|*
alternative content to display
*|END:IF|*
ELSEIF
*|IF:TRANSACTIONS >= 20|*
Enjoy this 40% off coupon! *|COUPON40|*
*|ELSEIF:TRANSACTIONS >= 10|*
Enjoy this 20% off coupon! *|COUPON20|*
*|ELSE:|*
Enjoy this 10% off coupon! *|COUPON10|*
*|END:IF|*
IFNOT
*|IFNOT:MERGE|*
content to display
*|
Full list of conditional statements can be found here: MailChimp Conditional Formating
Cheers

Answer 2

Thanks to #William Entriken for pointing out the ELSEIF tags no longer work.
Here's an implementation with nested ifs. The following assumes a week starts with Monday as DAY_ID = 1 and ends with Sunday = 7
*|IF:DAY_ID < 2|*
Monday
*|ELSE:|*
*|IF:DAY_ID < 3|*
Tuesday
*|ELSE:|*
*|IF:DAY_ID < 4|*
Wednesday
*|ELSE:|*
*|IF:DAY_ID < 5|*
Thursday
*|ELSE:|*
*|IF:DAY_ID < 6|*
Friday
*|ELSE:|*
Weekend
*|END:IF|*
*|END:IF|*
*|END:IF|*
*|END:IF|*
*|END:IF|*