Holding(s) in Company

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Optimal Payments Plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the notification obligation:

Thornburg Investment Management

4. Full name of shareholder(s)

(if different from 3.):

5. Date of the transaction and date on which the threshold is crossed or reached:

9 April 2014

6. Date on which issuer notified:

29 May 2014

7. Threshold(s) that is/are crossed or reached:

3%

  8. Notified details:

A: Voting rights attached to shares

Class/type of shares

if possible using the ISIN CODE

Situation previous to the triggering transaction  

Resulting situation after the triggering transaction

Number of

Shares

Number of

Voting

Rights

Number of shares

Number of voting rights

% of voting rights

Direct

Direct

Indirect

Direct

Indirect

GB0034264548 ord

OPAY LN

GB0034264548

NVAFF US

Below 3%

Below 3%

4,735,539

314,234

4,735,539

314,234

2.94%

0.19%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/

Conversion Period

Number of voting rights that may be

acquired if the instrument is

exercised/ converted.

% of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise/ Conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

5,049,773

3.13%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, applicable:

Thornburg Investment Management holds these rights as discretionary investment manager on behalf of clients.

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:

Ronald Olexsak

15. Contact telephone number:

USA 505.467.7447